<template>
  <a-layout>
    <a-layout-sider width="200" style="background: #fff">
      <a-menu
          mode="inline"
          :style="{ height: '100%', borderRight: 0 }"
          @click="handleClick"
      >
        <a-menu-item key="welcome">

            <MailOutlined/>
            <span>欢迎</span>

        </a-menu-item>
        <a-sub-menu v-for="item in level1" :key="item.id">
            <template v-slot:title>
              <spam><user-outlined/> {{item.name}} </spam>
            </template>
          <a-menu-item v-for="child in item.children" :key="child.id">
            <MailOutlined/> <spam>{{child.name}} </spam>
          </a-menu-item>
        </a-sub-menu>


      </a-menu>
    </a-layout-sider>
    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <div class="welcome" v-show="isShowWelcome">欢迎你</div>
      <a-list v-show="!isShowWelcome"  item-layout="vertical" size="large" :grid="{ gutter: 20, column: 3 }" :data-source="ebooks">
<!--      grid="{ gutter: 20, column: 3 }间距20 每行3列   data-source="Ebook1“  从后端得到的数据 item.name 后端对象对应的属性  -->
        <template #renderItem="{ item }">
          <a-list-item key="item.name">
            <template #actions>
          <span v-for="{ type, text } in actions" :key="type">
            <component v-bind:is="type" style="margin-right: 8px" />
            {{ text }}
          </span>
            </template>
            <a-list-item-meta :description="item.description">
              <template #title>
              <router-link :to="'/doc?ebookId=' + item.id" >
              {{item.name}}
              </router-link>
              </template>
              <template #avatar><a-avatar :src="item.cover" /></template>
            </a-list-item-meta>

          </a-list-item>
        </template>
      </a-list>

    </a-layout-content>
  </a-layout>
</template>

<script lang="ts">
import { defineComponent ,onMounted,ref,reactive,toRef} from 'vue';
import HelloWorld from '@/components/HelloWorld.vue'; // @ is an alias to /src
import { StarOutlined, LikeOutlined, MessageOutlined } from '@ant-design/icons-vue';
import axios from "axios";
import {Tool} from "@/util/tool";
import {message} from "ant-design-vue";
const listData: Record<string, string>[] = [];



export default defineComponent({
  name: 'Home',
  setup(){
    console.log("setup");
    const Ebook1 = ref();
    const Ebook2 = reactive({book1:[]});
    const ebooks = ref();
    //增加分类选择

    const level1 = ref();
    let categorys :any
    //查询所有分类
    const handleAll = () => {
      axios.get("category/all",
      ).then((response) => {
        const data = response.data;
        if(data.success){
          categorys = data.content;
          console.log("原始的数组" , categorys.value);
          level1.value=[];
          level1.value= Tool.array2Tree(categorys,0);
          console.log("树形结构",level1);
          //加载完成分类后 ，在加载电子书，否则如果分类加载很慢 则电子书渲染会报错
          handleQueryEbook();
        }else {
          message.error(data.message);
        }

      })
    };
    const handleQueryEbook = () => {
      axios.get("/ebook/list", {
        params: {
          page: 1,
          size: 1000,
          categoryId2:categoryId2
        }
      }).then((response) => {
        const data = response.data;
        ebooks.value = data.content.list;
        // ebooks1.books = data.content;
      });
    };
    const handleClick= (value: any)=>{
      // console.log("menu click", value)
      if (value.key === 'welcome') {
        isShowWelcome.value = true;
      } else {
        categoryId2 = value.key;
        isShowWelcome.value = false;
        handleQueryEbook();
      }
      // isShowWelcome.value = value.key === 'welcome';
    };
    const isShowWelcome = ref(true);
    let categoryId2 = 0;

    onMounted(() =>{
      handleAll();

    });
    const pagination = {
      onChange: (page: number) => {
        console.log(page);
      },
      pageSize: 3,
    };
    const actions: Record<string, string>[] = [
      { type: 'StarOutlined', text: '156' },
      { type: 'LikeOutlined', text: '156' },
      { type: 'MessageOutlined', text: '2' },
    ];
    return {
      ebooks,
      handleAll,
      handleClick,
      isShowWelcome,
      listData,
      pagination,
      actions,
      level1
    }
  },
  components: {
    HelloWorld,
    StarOutlined,
    LikeOutlined,
    MessageOutlined,
  },
});
</script>
